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Income Taxes
9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]  
Income taxes
Income Taxes 

The effective tax rate for the three months ended September 30, 2017 was (33.5)% and reflects discrete tax benefits related to the Stability Divestiture of $5,737,000, and $1,702,000 primarily related to equity compensation deductions. The effective tax rate exclusive of the tax benefit associated with the Stability Divestiture was 15.4% for the three months ended September 30, 2017 and 28.1% for the three months ended September 30, 2016, respectively.
The effective tax rate for the nine months ended September 30, 2017 was (14.0)% and reflects discrete tax benefits related to the Stability Divestiture of $5,737,000, and $5,618,000 primarily related to equity compensation deductions. The effective tax rate exclusive of the tax benefit associated with the Stability Divestiture was 9.4% for the nine months ended September 30, 2017 and 31.5% for the nine months ended September 30, 2016, respectively.
As of the end of September 2017, the projected annual effective tax rate for 2017 is 35.1% (excluding discrete items).